Example of Work
1.4Mg/800kb

Example of Not Work
2.1Mg/1.1Mg

Three Types of Levers

3.5 Mg

Pendulum Energy
5Mg/820kb

Dropping Ball
2.5Mg/720kb

Rubber Duck
656kb

Count the Hertz
#1, #2 and #3

Longitudinal Waves
8kb

Transverse Waves
8kb